for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) {
memcpy(&sample, data_in + i, ctx->unitsize);
/* The first column is a counter (needed for gnuplot). */
c = outbuf + strlen(outbuf);
for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) {
memcpy(&sample, data_in + i, ctx->unitsize);
/* The first column is a counter (needed for gnuplot). */
c = outbuf + strlen(outbuf);